From: Nikhil Mahale <nmahale@nvidia.com>
Date: Wed, 9 Aug 2017 03:53:01 +0000 (+0530)
Subject: drm: Fix framebuffer leak
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=491ab4700d1b64f5cf2f9055e01613a923df5fab;p=openwrt%2Fstaging%2Fblogic.git

drm: Fix framebuffer leak

Do not leak framebuffer if client provided crtc id found invalid.

Signed-off-by: Nikhil Mahale <nmahale@nvidia.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1502250781-5779-1-git-send-email-nmahale@nvidia.com
---

diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index 5dc8c4350602..e40c12fabbde 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -601,6 +601,7 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
 
 		crtc = drm_crtc_find(dev, plane_req->crtc_id);
 		if (!crtc) {
+			drm_framebuffer_put(fb);
 			DRM_DEBUG_KMS("Unknown crtc ID %d\n",
 				      plane_req->crtc_id);
 			return -ENOENT;